4.8
(22)
162
hikers
14
hikes
Mountaineering around Gelmersee, a hydroelectric reservoir nestled at 1,860 meters (6,070 ft) in the Bernese Oberland, Switzerland, offers challenging routes amidst steep, rugged mountains. The area is characterized by its vivid turquoise lake, fed by alpine water, and is part of the picturesque Grimsel Valley, providing views of the Uri Alps. Mountaineering routes often feature rocky and steep terrain, with some sections requiring hands for balance. The landscape includes natural rock arches and impressive waterfalls, defining a demanding alpine environment.
…Last updated: May 9, 2026
5.0
(1)
5
hikers
4.70km
01:45
120m
110m
Hard mountaineering route. Great for any fitness level. Sure-footedness, sturdy shoes and alpine experience required.
4.5
(8)
35
hikers
13.1km
05:41
590m
590m
Hard mountaineering route. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.

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5.0
(6)
17
hikers
7.60km
03:22
350m
350m
Hard mountaineering route. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
5.0
(1)
9
hikers
8.54km
03:56
460m
460m
Hard mountaineering route. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
5.0
(1)
10
hikers
6.35km
03:16
540m
540m
Hard mountaineering route. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
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The Sidelhorn is a 2764 m high mountain in the Bernese Alps massif in Switzerland. It lies on the border of the cantons of Valais and Bern and on the European main watershed. https://de.m.wikipedia.org/wiki/Sidelhorn
4
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In foggy weather you can't sunbathe, but it is still worth seeing and definitely worth a visit.
0
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You should bring sturdy shoes and surefootedness. If it rains, hiking poles are highly recommended.
0
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Sturdy shoes and surefootedness are recommended. Hiking poles would be ideal.
0
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Very nice hike. Below the Gelmerhütte we enjoyed our lunch with a magnificent view. The route can also be walked in the opposite direction. Tip: reserve the Gelmerbahn in advance, otherwise there can be long waiting times.
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The path consists of large stones that serve as steps. They are of different heights and widths and the path is narrow in places and goes steeply downhill.
0
0
The path is an old trade route and is mostly easy to walk!
0
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Various hiking trails start from here
1
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There are 14 distinct mountaineering routes around Gelmersee, offering a range of challenging experiences in the Bernese Oberland. The area is known for its steep, rugged mountains and dramatic alpine scenery.
Mountaineering around Gelmersee is primarily suited for experienced individuals, with 13 out of 14 routes rated as 'difficult'. These trails often feature rocky and steep terrain, with some sections requiring good surefootedness and the use of hands for balance or holding onto ropes and chains. For example, the Gelmerbahn – View of Gelmersee loop from Gelmersee is a difficult 4.7 km trail offering panoramic views.
Yes, several routes offer a circular experience. The Thousand Steps Trail – Gelmersee loop from Gelmersee is a challenging 13.1 km circular path with significant elevation gain. Another option is the View of Gelmersee – Gelmersee loop from Räterichsbodensee, which is 7.6 km long and leads through rugged mountain scenery.
The Gelmersee area is rich in natural beauty. You'll encounter the vivid turquoise waters of Lake Gelmer itself, fed by alpine waterfalls. Notable features include a natural rock arch on the Gelmersee Trail, and the Diechterbach Stream. The surrounding Uri Alps provide a stunning backdrop, and many routes offer a view of Lake Gelmer.
The mountaineering routes around Gelmersee are highly regarded by the komoot community, boasting an average rating of 4.8 out of 5 stars from over 20 reviews. More than 170 mountaineers have explored this area, often praising the dramatic alpine scenery, challenging terrain, and spectacular lake views.
While most routes are difficult, there is one moderate mountaineering route available. However, the region is generally characterized by challenging mountain trails (T3), demanding good surefootedness and proper trekking shoes. For a less strenuous experience, the Gelmersee Circular Trail around the lake is a popular option, though its northeastern section is still described as demanding with exposed parts.
The Gelmersee area is accessible, and parking is generally available near the base of the Gelmerbahn funicular at Handegg. For those seeking a unique approach, the Gelmerbahn itself is one of Europe's steepest open funiculars, offering a thrilling ride up to the lake. Public transport options to the Handegg area are also available, though it's advisable to check local schedules.
The best time for mountaineering around Gelmersee is typically during the warmer months when trails are clear of snow and ice, usually from late spring to early autumn. During this period, alpine flowers adorn the landscape, and the weather is generally more stable. Always check current weather and trail conditions before heading out, as alpine environments can change rapidly.
Beyond the immediate Gelmersee trails, you can explore other challenging routes in the wider Grimsel Valley. For instance, the Grimsel Pass – Sidelhorn Summit loop from Grimselpass offers a difficult 6.4 km ascent with significant elevation gain. Another option is the Summit Cross – Furka Pass Summit loop from Klein Furkahorn, a demanding 10.4 km route.
The mountaineering routes around Gelmersee are generally challenging and rated as 'difficult', often featuring exposed sections and requiring good surefootedness. While some parts of the Gelmersee Circular Trail are less demanding, the overall mountaineering experience is best suited for experienced individuals. Therefore, most mountaineering routes may not be ideal for young children or dogs, especially those requiring ropes or chains for assistance.
Yes, the Gelmersee area, particularly near the Handegg base station and the Grimsel Pass, offers some amenities. You can find cafes and potentially accommodation options in the vicinity, especially during the main tourist season. It's always a good idea to check availability and opening hours in advance, as services can be seasonal in alpine regions.


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